以热电厂固废粉煤灰为载体，通过固态研磨和高温处理实现钴氧化物的负载，制备得到CoO_x/FA催化剂，该催化剂在甲苯催化燃烧反应中表现出较好的活性。以酸和盐处理后的粉煤灰进行对比，通过对催化剂甲苯催化燃烧性能测试和XRD、氮气吸脱附、H₂-TPR、O₂-TPD、SEM等分析方法的表征，初步建立了CoO_x/FA在甲苯催化燃烧反应中的构效关系。结果表明，粉煤灰结构对所负载CoO_x的活性影响显著，弱相互作用的CoO_x是反应的活性位，适当的氧气吸附能力是催化剂活性的基础。

Fly ash (FA),a solid waste generated in thermal power plant,is used as the catalyst support for the preparation of CoOx/FA catalyst via the solid grinding method and high temperature treatment.The prepared CoOx/FA exhibits good activity in the catalytic combustion of toluene.Fly ash treated by acid and salt are used as comparative supports.The catalytic performance of CoOx/FA is tested through catalytic combustion of toluene.The catalysts are characterized by XRD,nitrogen adsorption and desorption test,H₂-TPR,O₂-TPD and SEM.The structure-property relationship for CoOx/FA in catalytic combustion of toluene is established.The conclusion is that fly ash structure has a significant effect on the activity of the supported CoOx,CoOx with weak interaction is the active site of the reaction,and the proper oxygen adsorption capacity is the basis of the catalyst activity.